Effect of transparent wood on the polarization degree of light

Vasileva, Elena; Baitenov, Adil; Chen, Hui; Li, Yuanyuan; Sychugov, Ilya; Yan, Max; Berglund, Lars A.; Popov, Sergei

doi:10.1364/ol.44.002962

Cited by 17 publications

(23 citation statements)

References 17 publications

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“…Haze was measured based on the ASTM D1003 “Standard Method for Haze and Luminous Transmittance of Transparent Plastics”, which is described as

\begin{matrix} Haze = (\frac{T 4}{T 2} - \frac{T 3}{T 1}) \times 100 % \end{matrix}

where T1, T2, T3, and T4 were measured according to ref. [ 52 ] .…”

Section: Methodsmentioning

confidence: 99%

“…[ 39,40,51 ] The collected scattering light transmitted through the self‐densified film showed an ellipse shape due to the different scattering intensity in orthogonal directions (Figure 3c inset), which is a key feature of anisotropic materials. [ 52 ] Detailed light intensity distributions were plotted in Figure 3c,d. Due to the alignment of cellulose microfibrils along the fiber in the longitudinal direction, light scattering perpendicular to the fiber direction had stronger intensity and wider scattering angle (±60°) than that parallel to fiber direction (±50°).…”

Section: Figurementioning

confidence: 99%

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Self‐Densification of Highly Mesoporous Wood Structure into a Strong and Transparent Film

et al. 2020

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In the native wood cell wall, cellulose microfibrils are highly aligned and organized in the secondary cell wall. A new preparation strategy is developed to achieve individualization of cellulose microfibrils within the wood cell wall structure without introducing mechanical disintegration. The resulting mesoporous wood structure has a high specific surface area of 197 m2 g−1 when prepared by freeze‐drying using liquid nitrogen, and 249 m2 g−1 by supercritical drying. These values are 5 to 7 times higher than conventional delignified wood (36 m2 g−1) dried by supercritical drying. Such highly mesoporous structure with individualized cellulose microfibrils maintaining their natural alignment and organization can be processed into aerogels with high porosity and high compressive strength. In addition, a strong film with a tensile strength of 449.1 ± 21.8 MPa and a Young's modulus of 51.1 ± 5.2 GPa along the fiber direction is obtained simply by air drying owing to the self‐densification of cellulose microfibrils driven by the elastocapillary forces upon water evaporation. The self‐densified film also shows high optical transmittance (80%) and high optical haze (70%) with interesting biaxial light scattering behavior owing to the natural alignment of cellulose microfibrils.

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“…Haze was measured based on the ASTM D1003 “Standard Method for Haze and Luminous Transmittance of Transparent Plastics”, which is described as

\begin{matrix} Haze = (\frac{T 4}{T 2} - \frac{T 3}{T 1}) \times 100 % \end{matrix}

where T1, T2, T3, and T4 were measured according to ref. [ 52 ] .…”

Section: Methodsmentioning

confidence: 99%

Section: Figurementioning

confidence: 99%

Self‐Densification of Highly Mesoporous Wood Structure into a Strong and Transparent Film

et al. 2020

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“…It is not related to the initial direction. [ 141 ]…”

Section: Functional Materials Derived From Delignified Woodmentioning

confidence: 99%

Delignified Wood from Understanding the Hierarchically Aligned Cellulosic Structures to Creating Novel Functional Materials: A Review

Kumar

Jyske

Petrič

2021

Advanced Sustainable Systems

102

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performance environmentally friendly materials. This is because new processes will be required that allow control on all hierarchical levels. Wood is well defined as a biological engineering material with a complex hierarchical structure of organic material based on cellulose fibrils embedded in a matrix of hemicelluloses and lignin. [1,2] Wood has long been used as a construction material, as well as for pulp and paper production. These applications are highly dependent on the properties of lignin in wood. Removal of lignin is the key step in pulp and paper production, in addition to the conversion of biomass to liquid biofuels. Lignin was first discovered in wood by Anselme Payen in 1839, [3] as the incrusting material that must be removed to isolate the useful fibers in wood. Research pertaining to wood nanotechnology or functional wood materials is a rapidly emerging field. Functional wood materials are mostly fabricated by treating hierarchical natural templates (wood cell wall) by chemical and thermal means. These treatments selectively modify the wood cell wall structure (fine pore spaces and inner lumen surface area) for different applications. [4] The pore region and inner lumen surface have actively been modified to enhance the bulk properties of wood using organic chemicals, [5] inorganic chemicals, organic-inorganic chemicals, [6,7] and thermal methods. [8] Hybrid wood scaffolds have been prepared for diverse applications such as magnetic wood, [9,10] as well as wood-mineral and wood-metal hybrids. [11] Recent research on delignified wood (DW) has emerged from the classical pulp production method. In the preparation of DW, the embedded lignin is removed from the wood cell wall structure, while maintaining the natural hierarchical cellulosic structure. [12] Initially, DW was prepared in order to understand the unknown ultrastructure of wood cell walls. However, since 2015, research in this area has rapidly expanded to focus on the development of wood-based functional scaffolds. Within the literature, DW is predominantly prepared using alkaline delignification methods such as Kraft pulping (a mixture of sodium hydroxide (NaOH) and sodium sulfite (Na 2 SO 3 )) heated to boiling temperature), followed by bleaching using hydrogen peroxide (H 2 O 2 ) to remove the lignin. DW is chemically hydrophilic due to the presence and exposure of hydroxyl groups and possible sites for DW functionalization. DW scaffolds have been functionalized

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“…Using nanotechnology it is also possible to create wood films with high transparency, higher flexibility, and strong mechanical properties. [ 295 ] Wood nanotechnology processes are used to obtain nanocellulose and 2D cellulose‐based materials, such as cellulose nanofibrils (CNF) and transparent wood films (TWF). This process consists of the removal of lignin and hemicellulose from original wood samples and subsequently pressing and drying them into thin transparent films.…”

Section: Enabling Technologies For Olaementioning

confidence: 99%

A Review on Materials and Technologies for Organic Large‐Area Electronics

Buga

Viana

2021

Adv Materials Technologies

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New and innovative applications in the field of electronics are rapidly emerging. Such applications often require flexible or stretchable substrates, lightweight and transparent materials, and design freedom. This paper offers a complete overview concerning flexible electronics manufacturing, focusing on the materials and technologies that have been recently developed. This combination of materials and technologies aims to fuel a fast, economical, and environmentally sustainable transition from the conventional to the novel and highly customizable electronics. Organic conductors, semiconductors, and dielectrics have recently gathered lots of attention since they are compatible with printing technologies, and can be easily spread over large and flexible substrates. These printing technologies are usually simple and fast procedures, which rely on low‐cost and recycle‐friendly materials, intended for large‐scale fabrication. Overall, even though organic large‐area electronics manufacturing is still in its early stages of development, it is a field with tremendous potential that holds promise to revolutionize the way products are designed, developed, and processed from the factory premises to the consumers’ hands. Besides, this technology is highly versatile and can be applied to a large array of sectors such as automotive, medical, home design, industrial, agricultural, among others.

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Effect of transparent wood on the polarization degree of light

Cited by 17 publications

References 17 publications

Self‐Densification of Highly Mesoporous Wood Structure into a Strong and Transparent Film

Self‐Densification of Highly Mesoporous Wood Structure into a Strong and Transparent Film

Delignified Wood from Understanding the Hierarchically Aligned Cellulosic Structures to Creating Novel Functional Materials: A Review

A Review on Materials and Technologies for Organic Large‐Area Electronics

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